﻿// Spun AJAX Framework
// Copyright (C) 2008 Blake Hegerle
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Spun.Naming.Paths;
using Spun.Naming;

namespace Spun.Bindings.Observation
{
    internal abstract class ObserverNode
    {
        internal ObserverNode(Path Path, BindingContext BindingContext)
        {
            this.path = Path;
            this.bindingContext = BindingContext;

            resolver = new PathResolver(BindingContext.NamingContext);
        }

        internal abstract void Update();
        internal abstract void Invalidate();

        internal IPathNode PathNode
        {
            get { return Path.Last(); }
        }

        protected Path Path { get { return path; } }
        protected BindingContext BindingContext { get { return bindingContext; } }
        protected PathResolver Resolver { get { return resolver; } }

        private Path path;
        private BindingContext bindingContext;
        private PathResolver resolver;
    }
}
